<template>
  <h3 @click="t+='?'">One组件--孙子:{{ t }}</h3>
  <p>来自于child的age:{{ age }}</p>
</template>

<script lang="ts" setup>
import {inject} from "vue";

const t = inject("t");
const age = inject("age");
</script>

<style scoped>

</style>
